Upgrade the heart of your machine with our 800W Water Cooled Spindle Motor. This unit is designed for users who need to replace or build a custom setup requiring the quiet and efficient thermal properties of water cooling. It's the core component for achieving whisper-quiet operation and stable temperatures during intricate, long-duration jobs.
■ Product Description

■ Technical Parameters
| Model | STM62-0.8-ER11 |
| Power | 0.8kW |
| Voltage | 220V |
| Current | 3A |
| Poles | 2 |
| Torque | 0.32Nm |
| Speed | 24000rpm |
| Frequency | 400Hz |
| Cooling | Water |
| Tool interface | ER11 |
■ Product Advantages

Extremely High Speed and Precision
The 0.8kW spindle is typically designed for high rotational speeds (up to 24,000 RPM or higher). Combined with high design accuracy, it is highly suitable for driving small-diameter tools to achieve excellent machining details and surface finish.

Extremely Low Operating Noise (Water Cooling Advantage)
If a water-cooled structure is used (common in fine engraving), it eliminates fan noise, resulting in quiet operation. This is particularly important for fine engraving studios, laboratories, or school environments where ambient noise is a concern.

Excellent Temperature Rise Control (Water Cooling Advantage)
The water cooling system effectively controls the temperature rise of the spindle during long periods of high-speed operation, ensuring the thermal stability of the bearings and the spindle, thereby guaranteeing sustained machining accuracy and extending spindle life.

Lightweight Design
The spindle is small and light, imposing minimal load on the machine's motion platform. This allows the machine tool to achieve higher motion speeds and accelerations, improving dynamic response during fine engraving.

Ideal for Fine Material Cutting
The low power and moderate torque are suitable for the delicate, stable cutting of small, brittle, or fragile materials (such as jade, seal stones, precious metals, precision plastics, etc.), avoiding material damage caused by excessive power.
■ Application Scenarios

Seal, Badge, and Nameplate Engraving
Applicable to fine lettering, patterns, and relief carving on various materials, performing excellently on small-scale products with high finish requirements.

Jewelry, Jade (Soft), and Precious Metal Processing
Used for micro-engraving, grinding, polishing, and complex detail shaping, where precision and detail requirements are paramount.

Precision Electronic Components and PCB Processing
Used for micro-drilling, precision cutting, and V-CUT of circuit boards, as well as fine finishing of small electronic components.Small Crafts and Prototyping
Performing high-precision, low-material-removal milling and shaping of materials like plastic, wax molds, and resin.
■ Adapted Equipment
● Desktop/Small High-Precision CNC Engraving Machines
Compact engraving equipment for personal studios, jewelry stores, or small craft factories.
● Precision Micro Machining Centers
Machining equipment dedicated to PCBs, small precision molds, or high-precision parts.
● Engraving Machines Paired with 3D Scanners
Used for detailed restoration and engraving of 3D scanning data.
● Multi-Functional Integrated Small CNC Machines
Used for integrating various fine machining functions such as engraving, drilling, and polishing.
■ FAQ
Q: Why choose a water-cooled spindle?A: They have good heat dissipation, low noise, and high machining accuracy.
Q: What should be paid attention to in the daily maintenance of a water-cooled spindle?A: Use clean water (purified water), change the water regularly, and remember to use antifreeze in winter.
Q: How to choose the right power for a water-cooled spindle?A: 3.2kW and below: Suitable for engraving wood, plastic, and other materials.
5.5kW and above: Suitable for processing hard materials like metal and stone.
Q: Why does the spindle get hot?A: If the water isn't circulating (for example, if the pump is broken or the pipe is blocked), the spindle will overheat.
Q: What type of water is best for cooling?A: It's best to use purified or distilled water.
Q: How big should the water tank be for the cooling system?A: The bigger the water tank, the better the heat dissipation. A 10-20 liter tank is generally sufficient for a small spindle.